The Jetfon GP4 omnidirectional quad-band fiberglass base antenna is a commercial-grade, multi-band base station radiator precision-engineered to deliver reliable multi-frequency coverage from a single structural footprint. Designed for versatile fixed-station deployments, this high-integrity antenna offers quad-band transmission and reception capabilities across key allocations: 28-29.7 MHz (10 Meters), 50-51 MHz (6 Meters), 144-146 MHz (2 Meters), and 430-440 MHz (70 Centimeters). It serves as an essential logistics procurement asset for emergency communication hubs, multi-band dispatch networks, regional monitoring stations, and high-volume B2B radiocommunication hardware wholesale distribution channels looking to secure high-efficiency, multi-band base infrastructure.
The internal electrical engineering of the Jetfon GP4 utilizes premium high-conductivity copper radiating elements encased in a heavy-duty, UV-stabilized white fiberglass outer shell to withstand extreme wind stress, ice loading, and severe outdoor environments. To maximize propagation efficiency across varying terrain, the vertical array delivers a highly optimized omnidirectional radiation pattern with staggered power gain metrics of 2.5 dBi (29/50 MHz), 3.0 dBi (144 MHz), and 5.5 dBi (430 MHz). Rated for a maximum power threshold of 60 Watts, the antenna maintains tight voltage standing wave ratio metrics with a VSWR of < 1.5 on the VHF/UHF bands and < 2.8 on the 10m/6m segments when matched to standard 50-ohm transmission feedlines.
Built with critical infrastructure survival in mind, the GP4 features a robust direct ground internal structure that safely routes high-voltage atmospheric static and nearby lightning discharges directly to the mounting mast, protecting delicate transceiver circuitry downstream from catastrophic damage. Standing at a compact total length of 1,220 mm (±5 mm), the antenna base terminates in a heavy-gauge, moisture-resistant SO-239 (UHF Female / PL) chassis socket. This plug-and-play vertical array ensures rapid installation, tool-free feedline coupling, and complete multi-shift operational readiness for critical multi-band voice and telemetry networks.
| Technical Specification Parameter | Specifications |
|---|---|
| Product Brand Designation | Jetfon (Original Factory Component Line) |
| Hardware Model Designation | GP4 (Omnidirectional Quad-Band Series) |
| Primary Component Classification | Multi-Band Omnidirectional Vertical Base Antenna |
| Operational Frequencies Matrix | 28.0 – 29.7 MHz | 50.0 – 51.0 MHz | 144.0 – 146.0 MHz | 430.0 – 440.0 MHz |
| System Power Gain Profile | 2.5 dBi (10m/6m) | 3.0 dBi (2m) | 5.5 dBi (70cm) |
| Voltage Standing Wave Ratio | VSWR < 1.5 (144/433 MHz) | VSWR < 2.8 (29.6/50.5 MHz) |
| Maximum Input RF Power Capacity | 60 Watts Continuous Maximum Threshold |
| System Characteristic Impedance | 50 Ohms Nominal Standard Optimization |
| Signal Propagation Fields | Vertical Polarization / 360° Omnidirectional Radiation |
| Lightning Surge Protection | Integrated Direct Chassis Ground Safety Path |
| Primary RF Interface Connection | SO-239 UHF Female Heavy-Duty Base Connector Sockets |
| Primary Internal Radiation Material | High-Conductivity Premium Copper Elements |
| Outer Enclosure Shield Material | Ruggedized, Weatherproof Protective Fiberglass Radome (White) |
| Total Physical Antenna Length | 1,220 mm ± 5 mm Vertical Clearance Height |
| Verified Hardware Compatibility Scope | Quad-Band Base Transceivers, Duplexers, SWR Bridges, PL-259 Coaxial Lines, and standard 50-ohm RF equipment |
| Primary Fleet Utility Purpose | Turnkey fixed-base multi-band station outfitting, public safety command links, weather-exposed infrastructure outfitting, and equipment surge protection |
